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结合深圳地铁2号线东港路站—招商东路站区间隧道竖井采用的吊脚桩围护结构形式及止水帷幕的设计与施工,介绍了在上软下硬复合地层中设计竖井围护结构的难点和重点,并提出设计、施工中一些需要注意的关键技术问题,为以后类似工程提供借鉴。
Combined with the design and construction of the hanging foot pile structure and the water curtain used in the tunnel shaft of Donggang Road Station - China Merchants Road Station in Shenzhen Metro Line 2, the paper introduces the design of the shaft envelope in the upper and lower hard composite strata The difficulties and key points, and put forward some key technical problems needing attention in the design and construction so as to provide reference for similar projects in the future.